Speculative revert to fix ChromeOS PFQ mips builder

third_party/harfbuzz-ng/harfbuzz.gyp

Index: third_party/harfbuzz-ng/harfbuzz.gyp
diff --git a/third_party/harfbuzz-ng/harfbuzz.gyp b/third_party/harfbuzz-ng/harfbuzz.gyp
index f381e743f9893966730b5196605ef7e1a29b114e..cd58e641a6f117978d2465065103dd4c6fe2e88b 100644
--- a/third_party/harfbuzz-ng/harfbuzz.gyp
+++ b/third_party/harfbuzz-ng/harfbuzz.gyp
@@ -7,6 +7,18 @@
     '../../build/win_precompile.gypi',
   ],
   'variables': {
+    'variables': {
+      'conditions': [
+        ['sysroot!=""', {
+          'pkg-config': '<(chroot_cmd) ../../build/linux/pkg-config-wrapper "<(sysroot)" "<(target_arch)" "<(system_libdir)"',
+        }, {
+          'pkg-config': 'pkg-config'
+        }],
+      ],
+    },
+
+    'pkg-config': '<(pkg-config)',
+
     'conditions': [
       ['OS=="linux" and (buildtype!="Official" or chromeos==1) and embedded==0', {
         # Since version 1.31.0, pangoft2 which we depend on pulls in harfbuzz
@@ -18,6 +30,12 @@
       }, {
         'use_system_harfbuzz': 0,
       }],
+      ['OS=="linux" and target_arch=="arm" and chromeos==0', {
+        # Override use_system_harfbuzz for ARM cross compiling so system
+        # harfbuzz is not used because the corresponding package is not
+        # available.
+        'use_system_harfbuzz': 0,
+      }],
     ],
   },
   'conditions': [